1、KS C IEC 60468KSKSKSKSSKSKSKS KSKSKS SKSKS KSKS SKS KS KS C IEC 60468 : 2003 (2008 ) 2003 5 20 http:/www.kats.go.kr : ( ) ( ) ( ) : (http:/www.standard.go.kr) : : 2003 5 20 : 2008 10 29 2008-0706 : ( 02-509-7294) . (http:/www.kats.go.kr) 10 5 , . ICS 17.220.20; 29.240.20 KS C IEC 60468: 2003 (2008 )
2、 Method of measurement of resistivity of metallic materials 1974 IEC 60468 Method of measurement of resistivity of metallic materials , . 1. ( ) ( ) . . . 2. 0.01 m 2.0 m(6 1 200 ohm circular mil/ft) ( ) . 3. 2 . 0.25 % 0.20 % . 0.65 %, 0.45 % 0.40 % . B . 1 . 20 . 4. 4.1 . t0 . )()()()(00100tRtltAt
3、 (t0): t0 R(t0): t0 A(t0): t0 l1(t0): t0 4.2 . t0 . C IEC 60468: 2003 2 )()()()(010020tltRtlmt (t0): t0 R(t0): t0 m: l1(t0): t0 l2(t0): t0 4.3 )()()(0100tltRtRl R(t0): t0 l1(t0): t0 4.4 IACS % International Annealed Copper Standards(IACS) IEC 60028(1925) 2 . 28 20 . , . 1925 IACS , . IACS % ( ) IACS
4、 % ( ) ( ) 100 . 5. (SI) . “ (footpound)” “ centimeter gram second(cgs)” , . . , 1 mm2 1 m( , 1 circular mil 1 square mil 1 ft ohm ohm circular mil/ft ohm square mil/ft .) ohm m . . , ( , ) . (“foot pound” ) . 6. 6.1 6.1.1 4 10 10 2 . 6.1.2 6.1.2.1 , , , . , mmm2mmm.viz22mile1 b22mmkg2mg.viz mmileft
5、C IEC 60468: 2003 3 . “ ” 5 1 % . , . , . , . 6.1.2.2 . a) 0.000 01 b) 0.3 m 1 ft c) d) 20 1 mm(0.04 in) . , , . . e) . 6.1.3 6.1.3.1 0.15 % . , (emf) . , . l1(t) 0.05 % . 1.5 . (Tomson) , ( ) , (lead compensation) , (lead ratio) . . (e.g. 5) . , 40 % . 0.06 % , . 40 % , . . 0.04 % . . . C IEC 60468
6、: 2003 4 15 25 . 6.1.3.2 0.15 % 15 25 . , 5 . 0.15 % . , 0.15 % , , . )()()(2tdtlmtAs m: l2(t): t ds(t): t 0.05 % 0.12 % . 6.1.3.3 , . )()(AsWAwsAddddddmm mA: ds: dW: dA: (1.2 kg/m3) 0.05 % . 6.1.3.4 0.12 % , . , . . )()()(tmmdtmtdmdLAALLAs mA, mL(t): dA: t (1.2 kg/m3) dL(t): t , ( ds/dL) mA ( ds dL
7、) / dL mL . ds dL . . 0.08 % . , . 0.05 mm , 2 2 , 0.01 dL/ ( ds dL) % . C IEC 60468: 2003 5 , 0.03 % . 0.04( dL/ ds) % 0.08( ds/ dL) % . 6.2 , , . , t 20 t0 . 6.2.1 6.2.4 , ( t t0) 0.04 % . 6.2.1 , )()(1)()(000ttttRtRR R(t): t R(t0): t0 R(t0): t0 6.2.2 R(t) l1(t) t , t0 . )()(1)()(000ttttRtRRll Rl(
8、t): t : 6.2.3 R(t), l1(t) A(t) t , t0 . )()(1)()(000tttttR (t): t 6.2.4 R(t), l1(t) l2(t) t , t0 . )(2)(1)()(000tttttR (t): t 6.2.5 t t , t t . . l2(t) l2(t)1 (t t) A(t) A(t)1 2 (t t) 6.2.6 , R(t0) . ( t t0) . 6.3 a) . C IEC 60468: 2003 6 1) 2) 3) , 4) , 5) , 6) 7) , 8) 20 9) 10) ( , .) b) . 1) . ,
9、, , , , 2) 7. 7.1 7.1.1 2 1 , 4 1 . 7.1.2 6.1.2 “ ” , 5 2 % . 7.1.3 7.1.3.1 0.30 % . 0.10 % . , 1 . 0.4 . 1035 . (emf) 6.1.3.1 . 7.1.3.2 0.50 % 10 35 . , 2 . 2 0.70 % , 6.1.3.2 , . 0.10 %, 0.20 %, 0.45 % . 7.1.3.3 . 7.1.3.4 0.45 % . 6.1.3.4 C IEC 60468: 2003 7 . 0.20 % . 0.30 %( dL/ ds) % . 0.30 % d
10、L/ ( ds dL) % . 0.15 mm , 2 1 2 , , 0.10 dL/ ( ds dL) % . 7.2 6.2 . ( t t0) 0.15 % . ( t t0) 6.2 . 7.3 , 6.3 . 1 0.05 % 0.10 % 0.15 % 0.30 % 0.15 % 0.50 % 0.05 % 0.10 % 0.05 % 0.20 % 0.12 % 0.45 % 0.04 dL/ ds% 0.30 dL/ ds% 0.08 dL/ (ds dL) % 0.30 dL/ (ds dL) % 0.08 % 0.20 % 0.06 % 0.25 % 0.04 %(0.1
11、) 0.15 %(0.4 ) 0.04 % 0.15 % : 0.25 % 0.20 % 0.20 % 0.65 % 0.45 % 0.40 % C IEC 60468: 2003 8 2 IACS % 20 100.00 Ohm metre Microhm metre Ohm circular mil/ft Microhm inch 1.724 1 80.017 241 10.371 0.678 79 Ohm kg/metre2Ohm g/metre2Ohm pound/mile21.532 8 40.153 28 875.20 KS C IEC 60028 . 3 20 IEC 28 10
12、5 111 121 (1) (2) (3) (4) e(t0), 10 8 m 1.724 1 2.90 2.826 4 2.80 R(t0), 10 3/ 3.93 3.93 4.03 4.07 , 10 5/ 1.7 2.3 2.3 2.3 , 10 11 m/ (5) 6.8 11.46 11.46 11.46 ds(t0), 106g m 38.89 2.703 2.703 2.703 (1) . , . (2) . . (3) . . (4) . . (5) IEC ( A ). C IEC 60468: 2003 9 A 6.2 , t0 . . , (t2) (t1) ( t2
13、t1) . t (t) , t0 3 . 20 . )(0tRC IEC 60468: 2003 10 B R(t0) . ,ABBAsXNZZRR RX: Rs: ZA, ZB: , . , RX R(t) t Rs(t ) t . t0 t2 , Rs(t) Rs(t2)1 s ( t t2) s: R(t) NABRs(t) NABRs(t2)1 s ( t t2) t t0 t t2 . . )(1)()()()(221tttRNtltAtssAB 2121iiX Xi: i Xi: Xi . 212222222212)()()()()(+ ttttRtRNNllAAttssssABA
14、B : 21220222222221122122020000)()()()()()()()()()()()()()()()(+tttttttttRtRNNllAAtttttttttttttssssABABC IEC 60468: 2003 11 . 21202002222222222211200)()()()()()()()(tttttttttRtRNNllllmmttssssABAB+ . 21202002222222211001000)()()()()()()()()()(1)()(tttttttttRtRNNlltRtRtttttRRssssABABll , , . t2 , ( t t2) s t t2 t . , 212222)(sssABABttRRNN 1 “ ” . 1 “ ” . “ ” 2122 tKts K: : R(t0) . “